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Hexamethylenediamine tetramethylene phosphonic acid HDTMPA

Hexamethylenediamine tetramethylene phosphonic acid HDTMPA

Category:

Organophosphorus scale and corrosion inhibitor chelating agent

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Keywords:

Organophosphorus scale and corrosion inhibitor chelating agent

Detailed introduction

Hexamethylene Diamine Tetra(Methylene Phosphonic Acid)

CAS No. 23605-74-5

Also known as: 1.6- Hexamethylenediamine tetramethylene phosphonic acid 、 Hexamethylenediamine tetramethylene phosphonic acid 、 Hexamethylenediamine tetramethylene phosphonic acid 、 HMDTMP

Molecular formula C₁₀H₂₈N₂O₁₂P₄

Relative molecular mass: 492.3

Structural formula:

Performance and Applications:

At room temperature HDTMPA A white crystalline powder , Sparingly soluble in water , Its solubility at room temperature is less than 5%。

HDTMPA Can inhibit various types of scale. ( Such as calcium carbonate scale, calcium sulfate scale, barium sulfate scale, and iron oxide scale, among others. ) Its formation, but in water treatment it is primarily used to inhibit calcium sulfate and barium sulfate scaling. Among various organic phosphonates, it exhibits particularly outstanding performance in preventing calcium sulfate scale—characterized by a high scale‑inhibition rate and prolonged effectiveness—making it especially suitable for squeeze treatments in oilfields. HDTMPA It can also be used in boiler water treatment.

Technical indicators

item eye	indicate Label
Outside View	White crystalline powder
Active ingredient (based on HDTPMA ^- Calculation) %	≥ 97.0
Chloride (in) Cl ^- Calculation) %	≤ 0.5
pH(1% Aqueous solution )	≤ 2.0
Fe( With Fe ²⁺ Accounting ) Content mg/L	≤ 35.0

Packaging and Storage:

HDTMPA Packaged in composite plastic woven bags or in packaging that meets export‑related environmental requirements, HDTMPA Net weight per bag 25kg It can also be determined according to user requirements. Store in a cool, dry place; shelf life is ten months.

Security Protection:

HDTMPA It is an acidic solid; take appropriate personal protective measures during handling, and avoid contact with skin, eyes, etc. If contact occurs, rinse thoroughly with plenty of water.

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